bodine



UNIED STATES PATENT OFFICE.

JOHN F. BODINE, OF WILLIAMSTOVN, NEW JERSEY, ASSIGNOR TO HIMSELF, WM. H. BODINE, AND JOEL A. BOBINE, OF SAME PLAGE.

REVOLVING PLUG FOR MANUFACTURING BOTTLES AND JARS.

Specification of Letters Patent No. 23,640, dated April 12, 1859.

To all whom 'it may concern:

Be it known that I, JOHN F. BOBINE, of lVilliamstown, in the county of Camden and State of New Jersey, have invented a new and useful Improvement in Manufacturing BottlesLsc.; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure l, is a vertical central section of my invention, the black lines showing it ready to be brought into use and the red lines showing it brought into operation. Fig. Q, is a side view of the same. Fig. 3, is a top view of the plug or mouth former, the revolving plate of the plug beinL removed, and, Fig. 4, is a top view o the revolving plate of the plug or former.

Similar letters of reference, in each of the several figures indicate corresponding parts.

In the manufacture of bottles and jars with shoulders around the interior of the mouth it is desirable to mold male locking lugs on opposite sides of the interior of the mouth just above the shoulder, so as to effect a locking of the top or cap, which is provided with a female recess and shoulders around its inner circumference, to receive and'coniine said lugs, with the bottle or jar.

In order to form lugs on bottles and jars of the character above alluded to, it is found necessary to provide the plug, which is usually employed for dressing the circumference and squaring the shoulder of the bottle or jar, with a turning plate having notches in its circumference said notches admitting the argillaceous substance of which the bottle is formed, while in a plastic state, to be pressed into them, and the turning plate turning with the bottle as it is reciprocated, while the plug serves as a stationary friction surface on which the interior of the mouth and the shoulder of the jar or bottle rubs and have their proper finished shape imparted to them. And in the use of the turning plate, it is essential that it be arranged to turn perfectly true on its axis, and hence the development of my invention, which consists in providing the turning plate with a large ring bearing on each of its faces, for it to turn upon, instead of depending upon a small central axis, said ring bearings being near the circumference of the turning plate and consequently giving it a large support which allows it no chance to play and keeps it perfectly true; whereas when a small central axis is employed, the dista-nce from the circumference to the center of the plate is so great that the plate and plug soon work very loose at the center, and consequently have a chance to play, and therefore, as it and the bottle reciprocate, the bottle is allowed to turn untrue or to shift itself to the right or left in a manner to cause its mouth and shoulder to be dressed very untrue.

To enable others, skilled in the art, to make and use my invention, I will proceed to describe its construction and operation.

The spring jaws A, A, central shaft B, and plug C, are now in common use for shapingand dressing the exterior and interior of the mouths of bottles and jars, and therefore need not be described particularly.

D, represents the turning plate arranged loosely on the central shaft B, and resting on top of the plug, and underneath a capping stop plate E; being fitted to turn between said plate and the plug on large ring bearings a, a, which are formed on its upper and lower or outer sides, and set in ring grooves o, Z), out in the under-side of the plate E, and upper side of the plug, as shown.

In the circumference of the turning plate two notches c, c, are cut to receive a portion of the argillaceous substance of which the bottle or ar is formed, while in a plastic state, and thus form lugs on the interior of the mouth of the bottle, as shown in red in Fig. 4:. In the circumference of the flange cl, of the plug, similar, but slightly enlarged, notches c, c, are formed, so that when the bottle is finished and it is desired to withdraw the plug, the lugs formed on it shall not interfere with its withdrawal; the said notches when in line with those c, c, allowing the plug to pass clear of the lugs.

The operation and effectof the plug when made with my improvement is as follows. The argillaceous substance is molded in the rough into a form approximating to a finished bottle or ar. The plug is then introduced as shown in black in Figs. l, and 2. The spring jaws are now brought together as shown in red in Fig. 1, and made to compress the substance forming the mouth of the bottle or jar so as to force a sulicent quantity into the recesses or notches c, 0, to form the lugs f, f, as shown in red in Figs. l and l. This being accomplished, the bottle is revolved or reciprocated in the path of a circle until the proper iinished cylindrical shape is given to the exterior and interior of the mouth and the shoulder g, squared truly. The accomplishment of the latter result is secured more perfectly by reason of my invention of the upper and lower, large, ring bearings Which steady and prevent that vibration, up and down, of the turning plate, experienced when it is arranged to turn on a small central axis.

What I claim as my invention and desire to secure by Letters Patent, is-

The large ring bearings a, a, formed on and near the circumference of the turning plate D, and tting in ring grooves b, b, formed in the plug C, and capping plate E, Substantially as and for the purposes set forth.

The above specification ofmy improvement in making bottles &c. signed by me this 16th day of March 1859.

JOHN F. BOBINE.

Witnesses:

G. YORKE AT LEE, D. F. LEE. 

